Cotton-cleaning machine.



No. 888,396. PATENTED MAY 19, 1908. J. M. GARDNER.

COTTON CLEANING MACHINE. APPLIOATION FILED MAY 21, 1907,

WJTNESSES-- INVENTOR ,6272 51;/ W1. uw f B Y /omey JEFFERSON M. GARDNER, OF NEW LONDON, CONNECTICUT.

COTTON-CLEANING MACHINE.

Specification of Letters Patent.

Patented May 19, 1908.4

Application filed May 21, 1907. Serial No. 374,896.

To all whom it may concern:

Be it known that I, JEFFERSON M. GARD- NER, a citizen of the United States, residing at New London, in the county of New London and State of Connecticut, have invented certain new and useful Im rovements in Cotton- Cleaning Machines, o which the following is a specification.

This invention relates to cleaning seed cotton preparator to ginning.

The object of t ie invention is to provide effective means for freeing cotton from dust, dirt, bolls and other objectionable matter in order to allow cotton to be picked rapidly and with less care in the operation than is usual, thus effecting a great saving in the cost of the labor involved.

With this object in view the invention consists of an apparatus incorporating the general and specific features of construction and arrangement of arts, substantially as hereinafter describe and claimed.

The invention is illustrated in the accompanying drawing in which the figure represents a transverse vertical sectional view of the preferred form of apparatus for carrying out the various steps of cleaning.

The seed cotton is fed into an inlet passage 1 in any suitableway, and is subjected to a partial threshing by com'no' into contact with toothed. cylinders 2, an 3 mounted in the lower portion of the inlet and it is by this means projected into an air passage 4. The lower cylinder 2, is rotated in the direction indicated by the arrow and carries cotton falling on it inward to be engaged by the teeth of the smallerrapidly revolving toothed c linder 3, and by the latter is brought into t e passage 4. A shield or guard 5 is arranged above the cylinder 3 and serves to prevent the cotton from coming initially into contact with this c linder, directing it upon the cylinder 2. T e cylinders 2 and 3 coacting as they do serve primarily to feed the cotton yuniformly into the air passage but their action also serves to loosen up the cotton and present it in a condition tending to facilitate the other treatment to which it is subjected. 'The air passage 4 has an o en inlet end 6, and extends upward and t en downward terminating in a discharge opening 7 to which is attached an exhaust fan 8 by which suction sufficient to convey-cotton into the machine and to carry 0H dust, dirt and other foreign substances freed from the cotton, is created. After being threshed by accomp the toothed cylinders 2 and 3, the seed cotton entering the air passage is loosened and therefore any heavy substances carried b the cotton are disengaged therefrom and W' l fall, of their own weight, through the lower open end of the air passage free of the machine. The cotton carried upward through the passage 4 is brought into contact with the toothed threshing roller 9, which is rotated in the direction shown by the arrow, and which is inclosed in a casing '10, having an inlet o ening in its upper end communicating with t e air assage 4 and a discharge opening 11, through which the cotton, after being threshed, falls. Arranged above the cylinder 9 is a toothed bar 12, the projections whereof extend between the teeth of the cylinder 9 so that the cotton carried b the cylinder.is loosened up thoroughly fiberating dust, dirt, etc., carried by it.

The smaller and lighter portions of the objectionable matter carried by the cotton are removed therefrom immediatel after being acted u on by the ish this the side of the casing 10, adjacenft to the discharge 7, is formed by a plate 13, o ings o a size to allow the assage therethrough of small articles of dirt etc. and too small to permit he escape through them of the fiber of the cotton. Light foreign substances are drawn through the openin s in the plate 13, and are carried 0H by the raft created by the suction fan and are discharged through the eye of the latter. after being threshed and relieved from small and light foreign substances, falls into a cylindric'al casing 14, in which is located a rotating drum 15, having projecting from it bars 16, of a width and length to just clear the inner surface of the casing. The casing has extending across it in its upper portion and in a position to receive the cotton carried downward b the cylinder 9, an inlet passage 17, and in t e upper portion of the passage are placed pins 18, whichserve to free cotton which may adhere to the projections 16 of the drum 15.

A discharge passage 19 extends downward from the casing 14, and the cotton carried by the toothed drum is directed through this passage to the surface of a cylinder 20, composed of spikes or saws. The cylinder 20 is inclosed in a casing 21, the lower portion of which is formed with openings which are adjustable in size.

threshing cy inder 9. To'

The cotton,`

erforated metal having therein openmeans of moving the plate 22 I attach to it a,

rack 23 with which meshes a pinion 24 so that by rotating the latter the plate lmay be shifted in the desired direction.

The toothed cylinder` isrotated at higlh i speed in the direction indicated and any bo the feed opening,

` and adapte or 'heavy matter carried by the cotton Whichhas been loosened up by the o erations previously described are thrown y centrifugal force through the o eningsin the casing surrounding the cylin er.

The seed cotton, -after being carried beyond the openings'in the casing, is removed from the teeth of the cylinder 20 by the doffing roller 25 and discharged through the outiet 26.

Having thus described my invention, what I claim as new, and desire to secure by Let- -ters Patent, is

1; A cotton cleaningmachine comprising a feed o ening, means for threshing cotton arrange y sage ad'acent to and communicating with fee opening, and having a lower open end, substantially as described.

2. A cotton cleaning machine comprisinga` feed o enin means for threshing cotton arrange in t e feed opening, an air passage adjacent to and communicating with the feed opening, and having a lower open end, a casing having a portion thereof formed with perforations interposed in the air passage, and means arranged in the casing for threshing cotton, substantially as described.

3. A cotton cleanin machine comprising a feed opening, two t eshing cylinders arranged in the feed openin a shield or guard arranged above the cylin ers, an air assage adjacent to and communicating with the and havin ing having a portion t ereo formed with perforations interposed n the 'air passage, and means arranged in the casing for threshing cotton, substantially as described.

4. A cotton cleaning machine comprising a feed opening, a threshing cylinder arranged in the feed opening, a second ra idl revolving threshin cylinder arrange adjacent to to co-act with the first, an air passage adjacent to and communicating with the feed opening,

in the feed opening, and an air pas? an o en end, a cas,

'and havingA an open end, a casing having a portion thereof formed with perforations interposed in the air passa e, and means arranged -in the feed opening or threshing cotton, substantially as described.

5. A cotton cleaning machine comprising an air passage connected with an exhaust fan, a casing having a' portion `thereof provided With perforations interposed inthe air passage, means for threshing cotton arranged inthe casing, a second casin having openin s therein varranged below t e first, means or regulating the o enings in the second casin a toothed cylinder arranged in the`secon casing, and .means for conveying cotton from-the first to the second casing, substantially as described.

6. A cotton cleaning machine comprising an air passage, a casing having a portion thereof provided' 'with perforationsv interposed in the air passage, means for threshing cotton arranged in the casing, a second casing having a toothed cylinder mounted therein and having a portion thereof formed of lates having registering openings, one plate eing movable to allow changing the size of the openings, andjm'eans for conveying cot` ton-from the first to the second casing, substantially as described. Y

sov

7. A cotton gin comprising a feed o ening, u

means for threshing feed opening, an air passa communicating with the having va lower open end, a casing having a portion thereof provided with perforations inter osed in `the air passage, means for thres 1in cotton arranged in the casing, and a second; casing having openings therein, a

e adjacent to and eed opening, and

toothed cylinder' arranged in the second casing, and means for conveying cotton from the first to the second casing, substantially as described.

8. A cotton cleaning machine comprising an air passage, a casing having a portion thereof provided with perforations interposed in the` air passage, means for threshing cotton arranged in the casing, and a-secon casin having o enin s therein, a toothed cylin er arrange in tie second'casin and means for conveying cotton from the first to the second casing, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JEFFERSON M. GARDNER.

Witnesses:

EDWARD T. BRoADY, GEORGE T. BROWN.

cotton arrange in the 

